A steel wire adjustment mechanism for endoscope
By adopting the design of shrapnel and locking parts in the wire adjustment mechanism of the endoscope, the problem of labor and instability of the traditional adjustment mechanism is solved, and more efficient and precise lens angle adjustment is achieved.
Patent Information
- Application Number
- CN202421283667.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-05
AI Technical Summary
Due to interference fit and frictional limitations, the wire adjustment mechanism of traditional endoscopes is laborious when adjusting the length and tightness of the wire, and the length and tightness of the wire are not stable enough, affecting the lens angle adjustment accuracy.
A steel wire adjustment mechanism for an endoscope is adopted, including a first adjustment wheel, a second adjustment wheel and a rotating shaft. By cooperating with the shrapnel and the locking member, stable locking and flexible adjustment of the steel wire are achieved.
It improves the operability and stability of wire adjustment, ensures the accuracy of lens angle adjustment, and reduces operation difficulty and error.
Smart Images
Figure CN222737842U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of endoscopes, in particular to a steel wire adjustment mechanism for endoscopes. Background Art
[0002] An endoscope is a lighted tube that can be passed through the mouth and into the stomach or other natural orifices in the body. It is very useful to doctors because it allows them to see things that X-rays cannot.
[0003] When using endoscopes clinically, it is often necessary to adjust the angle of the lens. The lens is set at the front end of the endoscope. Figure 1 The rear end of the endoscope is provided with a handle 2 and a rotating wheel 11. The handle 2 controls the rotation of the rotating wheel 11. The rotating wheel 11 is rotatably arranged in the housing 1 at the rear end of the endoscope, and the handle 2 is rotatably arranged outside the housing 1. The handle 2 is connected to the rotating wheel 11 through the rotating shaft 5 and drives the rotating wheel 11 to rotate. The rotating wheel 11 is usually connected to the lens through a steel wire and drives the lens to swing. Traditionally, two steel wires are wound around the rotating wheel 11, a groove is opened in the middle of the rotating wheel 11, an auxiliary frame 12 is arranged in the groove, and an adjustment roller 13 is arranged in the auxiliary frame 12. The two ends and the outer peripheral wall of the adjustment roller 13 are interference-fitted with the inner wall of the auxiliary frame 12. Each steel wire corresponds to an adjustment roller 13. The adjustment roller 13 is provided with a through hole 131 for the steel wire to pass through. One end of the steel wire is fixed to the adjustment roller 13, and the other end of the steel wire passes through the through hole 131 and is wound around the rotating wheel 11 and extends to the lens at the front end of the endoscope. By rotating the adjusting roller, the length and tightness of the steel wire can be adjusted. After the length and tightness of the steel wire are adjusted, the adjusting roller is released. At this time, the adjusting roller is kept stable by friction.
[0004] When the angle of the lens needs to be adjusted, the handle is used to drive the wheel to rotate, causing one steel wire to extend and the other to contract, thereby controlling the swing of the front lens.
[0005] However, due to the interference fit between the adjustment roller and the auxiliary frame, the rotation of the adjustment roller is limited by friction. Therefore, it is more laborious to turn the adjustment roller, and the operability of adjusting the length and tightness of the steel wire is poor. Moreover, since the rotation of the adjustment roller is limited by friction, the length and tightness of the steel wire are not kept stable enough. If the staff applies too much force when turning the wheel, the length and tightness of the steel wire will change, affecting the angle adjustment accuracy of the front end lens of the endoscope. Utility Model Content
[0006] In order to solve the above technical problems, the present application provides a wire adjustment mechanism for an endoscope.
[0007] The present application provides a wire adjustment mechanism for an endoscope using the following technical solution:
[0008] A wire adjustment mechanism for an endoscope, comprising a first adjustment wheel, a second adjustment wheel, and a rotating shaft, wherein the first adjustment wheel and the second adjustment wheel are coaxially arranged and rotatably connected, and the first adjustment wheel and the second adjustment wheel are both rotatably arranged in an endoscope housing; a first mounting hole for one of the wires to pass through is arranged on a peripheral side wall of the first adjustment wheel, and a second mounting hole for another wire to pass through is arranged on a peripheral side wall of the second adjustment wheel, one end of each of the wires is fixed to the corresponding first adjustment wheel / second adjustment wheel, and the other end of each of the wires extends to the lens at the front end of the endoscope;
[0009] A first mounting circular groove is provided on the top surface of the first adjusting wheel, a first elastic sheet is provided in the first mounting circular groove, a first locking piece is telescopically provided on the first elastic sheet, a first matching piece used in conjunction with the first locking piece is provided on the inner circumferential wall of the first mounting circular groove, and the first locking piece is telescopically engaged with or disengaged from the first matching piece;
[0010] A second mounting circular groove is provided on the top surface of the second adjusting wheel, a second elastic sheet is provided in the second mounting circular groove, a second locking piece is telescopically provided on the second elastic sheet, a second matching piece used in conjunction with the second locking piece is provided on the inner circumferential wall of the second mounting circular groove, and the second locking piece is telescopically engaged with or disengaged from the second matching piece;
[0011] The rotating shaft includes a circular section, a first square section, and a second square section. The circular section is rotatably connected to the endoscope housing. The first square section passes through the first elastic sheet and the second elastic sheet at the same time. The centers of the first elastic sheet and the second elastic sheet are both provided with square holes for the first square section to pass through. The second square section is located outside the endoscope housing, and the second square section is plugged into the handle.
[0012] Preferably, the first elastic sheet comprises two first unit metal sheets, the middle parts of the two first unit metal sheets have a force moving in a direction away from each other, the ends of the two first unit metal sheets have a force moving in a direction approaching each other, the first locking piece is connected to both ends of the first unit metal sheet, and the two first locking pieces at one end of the length direction of the two first unit metal sheets are connected;
[0013] The second elastic piece includes two second unit metal sheets, the middle parts of the two second unit metal sheets have a force moving in a direction away from each other, the ends of the two second unit metal sheets have a force moving in a direction approaching each other, the second locking piece is connected to the two ends of the second unit metal sheet, and the two second locking pieces at one end of the length direction of the two second unit metal sheets are connected.
[0014] Preferably, the second adjusting wheel is located below the first adjusting wheel, and a pressing ring is provided at the bottom of the first adjusting wheel, and the pressing ring is pressed on the second elastic sheet, so that the two second unit metal sheets of the second elastic sheet are fitted together, so that the second locking member moves in a direction away from each other and extends to engage with the second matching member;
[0015] A pressing sheet is arranged above the first elastic sheet, and the pressing sheet is pressed on the first elastic sheet, so that the two first unit metal sheets of the first elastic sheet are fitted together, and the first locking member is moved in a direction away from each other and extended to be engaged with the first matching member. When the two first unit metal sheets are fitted together, the top surface of the rotating shaft is flush with the top surface of the top first unit metal sheet;
[0016] The pressing sheet is fixed to the first square section of the rotating shaft through a fixing member.
[0017] Preferably, the fixing member includes a limiting rod and a movable rod, the limiting rod is connected to the bottom surface of the pressing sheet, a limiting groove for the limiting rod to penetrate is provided on the top surface of the rotating shaft, the limiting rod is hollow, a movable groove is downwardly provided on the top surface of the limiting rod, the movable groove is symmetrically provided on both sides of the radial direction of the limiting rod, the movable groove corresponds to the movable rod one by one, the bottom end of the movable rod is fixedly connected to the inner bottom wall of the movable groove, the top end of the movable rod is movably connected to the limiting rod, the top end of the movable rod extends above the pressing sheet, and a movable hole for the movable rod to move is provided on the pressing sheet;
[0018] A limiting protrusion is arranged on the outer wall of the movable rod, and a limiting ring groove is opened outwardly on the peripheral side wall of the limiting groove for the limiting protrusion to penetrate into. When the pressing sheet presses the two first unit metal sheets to fit together, the top surface of the limiting protrusion abuts against the inner top wall of the limiting ring groove.
[0019] Preferably, the outer wall of the limiting protrusion is arranged to be inwardly contracted from top to bottom.
[0020] Preferably, the first locking piece and the second locking piece are tooth-like structures, the first mating piece and the second mating piece are inner tooth surfaces, the first locking piece extends to engage with the first mating piece or retracts to disengage from the first mating piece, and the second locking piece extends to engage with the second mating piece or retracts to disengage from the second mating piece.
[0021] Preferably, the first locking piece and the second locking piece are tooth-shaped structures, the first mating piece and the second mating piece are rubber rings, the first locking piece extends to be inserted into the first mating piece or retracts to be separated from the first mating piece, and the second locking piece extends to be inserted into the second mating piece or retracts to be separated from the second mating piece.
[0022] Preferably, the first mounting hole comprises a first entry hole and a first exit hole, the first entry hole and the first exit hole are located on both sides of the radial direction of the first adjusting wheel, and the first entry hole and the first exit hole are parallel to the diameter direction of the first adjusting wheel;
[0023] The second mounting hole includes a second entry hole and a second exit hole, the second entry hole and the second exit hole are located on both sides of the second adjusting wheel in a radial direction, and the second entry hole and the second exit hole are parallel to the diameter direction of the second adjusting wheel.
[0024] In summary, the present application includes at least one of the following beneficial technical effects:
[0025] 1. When assembling the adjustment mechanism, fix the rotating shaft to the handle through screws, pass the steel wire through and fix it on the corresponding first adjustment wheel and second adjustment wheel, then install the second adjustment wheel on the rotating shaft, and then sleeve the second spring piece on the rotating shaft. At this time, we can easily turn the second adjustment wheel to adjust the steel wire to a suitable length and tightness, and then install the second adjustment wheel on the rotating shaft and press the second spring piece, so that the second locking piece on the second spring piece engages with the second matching piece on the second adjustment wheel, thereby locking the second adjustment wheel so that the tightness of the steel wire on the second adjustment wheel can be kept stable;
[0026] Then, the second spring piece is sleeved on the rotating shaft. At this time, we can easily rotate the second adjusting wheel to adjust the steel wire to a suitable length and tightness. Finally, the second spring piece is pressed with a pressing piece so that the second locking piece on the second spring piece engages with the second matching piece on the second adjusting wheel, thereby locking the second adjusting wheel so that the tightness of the steel wire on the second adjusting wheel can be kept stable.
[0027] If the steel wire needs to be adjusted, move the movable rods closer to each other so that the limiting protrusion passes through the limiting groove, then take out the pressing piece, unlock the second adjusting wheel, and then take out the second adjusting wheel to unlock the second adjusting wheel;
[0028] 2. Since the second spring sheet and the second spring sheet are connected to the second square section of the rotating shaft through the square hole, when the handle is rotated, the corresponding first adjusting wheel and the second adjusting wheel are driven to rotate through the second spring sheet and the second spring sheet to realize the tightening and loosening action of the steel wire in the bending structure. Since the tightness of the steel wire is stably locked, the angle adjustment accuracy of the front end lens of the endoscope is also improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a structural diagram of a traditional wire adjustment mechanism.
[0030] Figure 2 It is a schematic diagram of the overall structure of a wire adjustment mechanism for an endoscope in Example 1 of the present application.
[0031] Figure 3 It is a schematic cross-sectional structure diagram used to display the adjustment mechanism in Example 1 of the present application.
[0032] Figure 4 It is used to demonstrate the embodiment 1 of this application Figure 3 A magnified schematic diagram of center A.
[0033] Figure 5 It is a schematic diagram of the structure of the first spring piece in the natural state in the first embodiment of the present application.
[0034] Figure 6 It is a structural schematic diagram used to display the pressing piece and the fixing member in Example 1 of the present application.
[0035] Figure 7 It is a structural schematic diagram used to show the cooperation between the first locking piece of the first elastic sheet and the first matching piece of the first adjusting wheel in the second embodiment of the present application.
[0036] Description of reference numerals: 1, housing; 11, rotating wheel; 12, auxiliary frame; 13, adjusting roller; 131, through hole; 2, handle; 3, first adjusting wheel; 31, first mounting hole; 311, first penetration hole; 312, first exit hole; 32, first mounting circular groove; 33, first matching piece; 34, pressing ring; 4, second adjusting wheel; 41, second mounting hole; 411, second penetration hole; 412, second exit hole; 42, second mounting circular groove; 43 , second matching piece; 5, rotating shaft; 51, circular section; 52, first square section; 521, limiting groove; 522, limiting ring groove; 53, second square section; 6, first spring piece; 61, first locking piece; 62, first unit metal sheet; 7, second spring piece; 71, second locking piece; 72, second unit metal sheet; 8, pressing piece; 81, movable hole; 9, fixing piece; 91, limiting rod; 911, movable groove; 92, movable rod; 921, limiting protrusion. DETAILED DESCRIPTION
[0037] The following is combined with Figure 1-7 This application is described in further detail.
[0038] The embodiment of the present application discloses a wire adjustment mechanism for an endoscope.
[0039] Embodiment 1
[0040] Reference Figure 2-6 The endoscope wire adjustment mechanism includes a first adjustment wheel 3, a second adjustment wheel 4, and a rotating shaft 5. The first adjustment wheel 3 and the second adjustment wheel 4 are coaxially arranged and rotatably connected. The first adjustment wheel 3 and the second adjustment wheel 4 are both rotatably arranged in the endoscope housing 1.
[0041] The first mounting hole 31 for one of the steel wires to pass through is arranged on the peripheral side wall of the first adjusting wheel 3. The first mounting hole 31 includes a first entry hole 311 and a first exit hole 312. The first entry hole 311 and the first exit hole 312 are located on both sides of the radial direction of the first adjusting wheel 3. The first entry hole 311 and the first exit hole 312 are parallel to the diameter direction of the first adjusting wheel 3. The steel wire passes through the first entry hole 311 and then passes through the first exit hole 312. After being wound around the first adjusting wheel 3 for several turns, it extends to the lens at the front end of the endoscope. The end of the steel wire that passes through the first entry hole 311 is fixedly connected to the first adjusting wheel 3.
[0042] The second mounting hole 41 for another steel wire to pass through is arranged on the peripheral side wall of the second adjusting wheel 4. The second mounting hole 41 includes a second entry hole 411 and a second exit hole 412. The second entry hole 411 and the second exit hole 412 are located on both sides of the radial direction of the second adjusting wheel 4. The second entry hole 411 and the second exit hole 412 are parallel to the diameter direction of the second adjusting wheel 4. The steel wire enters from the second entry hole 411 and then exits from the second exit hole 412. After being wound around the second adjusting wheel 4 for several turns, it extends to the lens at the front end of the endoscope. The end of the steel wire that enters from the second entry hole 411 is fixedly connected to the second adjusting wheel 4.
[0043] A first mounting circular groove 32 is provided on the top surface of the first adjusting wheel 3, a first elastic piece 6 is provided in the first mounting circular groove 32, a first locking piece 61 is telescopically provided on the first elastic piece 6, a first matching piece 33 used in conjunction with the first locking piece 61 is provided on the inner peripheral wall of the first mounting circular groove 32, and the first locking piece 61 is telescopically engaged with or disengaged from the first matching piece 33.
[0044] The first spring sheet 6 includes two first unit metal sheets 62, the middle parts of the two first unit metal sheets 62 have a force moving in a direction away from each other, the ends of the two first unit metal sheets 62 have a force moving in a direction approaching each other, the first locking members 61 are integrally formed at both ends of the first unit metal sheets 62, and the two first locking members 61 at one end in the length direction of the two first unit metal sheets 62 are connected. After the two first unit metal sheets 62 are pressed and attached to each other, the first locking members 61 at both ends of the first spring sheet 6 move in a direction away from each other.
[0045] A second mounting circular groove 42 is provided on the top surface of the second adjusting wheel 4, a second elastic piece 7 is provided in the second mounting circular groove 42, a second locking piece 71 is telescopically provided on the second elastic piece 7, a second matching piece 43 used in conjunction with the second locking piece 71 is provided on the inner peripheral wall of the second mounting circular groove 42, and the second locking piece 71 is telescopically engaged with or disengaged from the second matching piece 43.
[0046] The second spring sheet 7 includes two second unit metal sheets 72, the middle parts of the two second unit metal sheets 72 have a force moving in a direction away from each other, the ends of the two second unit metal sheets 72 have a force moving in a direction approaching each other, and the second locking members 71 are integrally formed at both ends of the second unit metal sheets 72, and the two second locking members 71 at one end of the length direction of the two second unit metal sheets 72 are connected. After the two second unit metal sheets 72 are pressed and attached to each other, the second locking members 71 at both ends of the second spring sheet 7 move in a direction away from each other.
[0047] The first locking piece 61 and the second locking piece 71 are tooth-shaped structures, and the first matching piece 33 and the second matching piece 43 are inner tooth surfaces. The first locking piece 61 extends to engage with the first matching piece 33 or retracts to disengage from the first matching piece 33, and the second locking piece 71 extends to engage with the second matching piece 43 or retracts to disengage from the second matching piece 43.
[0048] The rotating shaft 5 includes a circular section 51, a first square section 52, and a second square section 53. The circular section 51 is rotatably connected to the endoscope housing 1. The first square section 52 passes through the first spring piece 6 and the second spring piece 7 at the same time. The centers of the first spring piece 6 and the second spring piece 7 are both provided with a square hole for the first square section 52 to pass through. The second square section 53 is located outside the endoscope housing 1, and the second square section 53 is plugged into the handle 2 and fixed by screws.
[0049] The second adjusting wheel 4 is located below the first adjusting wheel 3. A pressing ring 34 is provided at the bottom of the first adjusting wheel 3. The pressing ring 34 is pressed onto the second elastic piece 7 so that the two second unit metal sheets 72 of the second elastic piece 7 fit together, and the second locking piece 71 moves in a direction away from each other and extends out to engage with the second matching piece 43.
[0050] A pressing sheet 8 is provided above the first spring sheet 6, and the pressing sheet 8 is pressed on the first spring sheet 6, so that the two first unit metal sheets 62 of the first spring sheet 6 are fitted together, and the first locking piece 61 moves in a direction away from each other and extends to engage with the first matching piece 33. When the two first unit metal sheets 62 are fitted together, the top surface of the rotating shaft 5 is flush with the top surface of the topmost first unit metal sheet 62.
[0051] The pressing piece 8 is fixed to the first square section 52 of the rotating shaft 5 by the fixing member 9. The fixing member 9 includes a limiting rod 91 and a movable rod 92. The limiting rod 91 is connected to the bottom surface of the pressing piece 8. A limiting groove 521 for the limiting rod 91 to penetrate is provided on the top surface of the rotating shaft 5. The limiting rod 91 is hollow. A movable groove 911 is provided downward on the top surface of the limiting rod 91. The movable grooves 911 are symmetrically arranged on both sides of the radial direction of the limiting rod 91. The movable grooves 911 correspond to the movable rods 92 one by one. The bottom end of the movable rod 92 is fixedly connected to the inner bottom wall of the movable groove 911. The top end of the movable rod 92 is movably connected to the limiting rod 91. The top end of the movable rod 92 extends to the top of the pressing piece 8. The pressing piece 8 is provided with a movable hole 81 for the movable rod 92 to move.
[0052] A limiting protrusion 921 is provided on the outer wall of the movable rod 92, and a limiting ring groove 522 is provided on the peripheral side wall of the limiting groove 521 for the limiting protrusion 921 to penetrate. When the pressing sheet 8 presses the two first unit metal sheets 62 to fit together, the top surface of the limiting protrusion 921 abuts against the inner top wall of the limiting ring groove 522. The outer wall of the limiting protrusion 921 is set to be inwardly contracted from top to bottom, so that the limiting protrusion 921 can pass through the limiting groove 521.
[0053] The implementation principle of a wire adjustment mechanism for an endoscope in the embodiment of the present application is as follows:
[0054] When assembling the adjustment mechanism, the rotating shaft 5 is fixed to the handle 2 by screws, the steel wire is passed through and fixed on the corresponding first adjusting wheel 3 and second adjusting wheel 4, and then the second adjusting wheel 4 is installed on the rotating shaft 5, and then the second elastic sheet 7 is sleeved on the rotating shaft 5. At this time, we can easily rotate the second adjusting wheel 4 to adjust the steel wire to a suitable length and tightness, and then install the second adjusting wheel 4 on the rotating shaft 5 and press the second elastic sheet 7, so that the second locking piece 71 on the second elastic sheet 7 is engaged with the second matching piece 43 on the second adjusting wheel 4, thereby locking the second adjusting wheel 4 so that the tightness of the steel wire on the second adjusting wheel 4 can be kept stable;
[0055] Then, the second spring piece 7 is sleeved on the rotating shaft 5. At this time, we can easily rotate the second adjusting wheel 4 to adjust the steel wire to a suitable length and tightness. Finally, the second spring piece 7 is pressed by the pressing piece 8, so that the second locking piece 71 on the second spring piece 7 is engaged with the second matching piece 43 on the second adjusting wheel 4, thereby locking the second adjusting wheel 4 so that the tightness of the steel wire on the second adjusting wheel 4 can be kept stable.
[0056] If the steel wire needs to be adjusted, move the movable rods 92 closer to each other so that the limiting protrusion 921 passes through the limiting groove 521, and then take out the pressing piece 8 to release the lock on the second adjusting wheel 4. Then take out the second adjusting wheel 4 to release the lock on the second adjusting wheel 4, and then continue to adjust the tightness of the steel wire.
[0057] When the lens angle needs to be adjusted, the handle 2 is rotated. Since the second spring piece 7 and the second spring piece 7 are connected to the second square section 53 of the rotating shaft 5 through the square hole, the handle 2 drives the first spring piece 6 and the second spring piece 7 to rotate through the rotating shaft 5. Since the first locking pieces 61 at both ends of the first spring piece 6 are engaged with the first matching piece 33 in the first adjusting wheel 3, and the second locking pieces 71 at both ends of the second spring piece 7 are engaged with the second matching piece 43 in the second adjusting wheel 4, the handle 2 drives the first adjusting wheel 3 and the second adjusting wheel 4 to rotate synchronously, so that one steel wire is extended and the other steel wire is contracted to control the swing of the front end lens.
[0058] Embodiment 2
[0059] The difference between this embodiment and the first embodiment is that, referring to Figure 7 The first locking piece 61 and the second locking piece 71 are tooth-shaped structures, the first fitting piece 33 and the second fitting piece 43 are rubber rings, the first locking piece 61 extends to be inserted into the first fitting piece 33 to lock the first adjusting wheel 3, or the first locking piece 61 is retracted to be disengaged from the first fitting piece 33 to unlock the first adjusting wheel 3, the second locking piece 71 extends to be inserted into the second fitting piece 43 to lock the second adjusting wheel 4, or the second locking piece 71 is retracted to be disengaged from the second fitting piece 43 to unlock the second adjusting wheel 4.
[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A wire adjustment mechanism for an endoscope, characterized in that: The endoscope comprises a first adjusting wheel (3), a second adjusting wheel (4), and a rotating shaft (5); the first adjusting wheel (3) and the second adjusting wheel (4) are coaxially arranged and rotatably connected; the first adjusting wheel (3) and the second adjusting wheel (4) are both rotatably arranged in an endoscope housing (1); a first mounting hole (31) for one of the steel wires to pass through is arranged on a peripheral side wall of the first adjusting wheel (3); a second mounting hole (41) for another steel wire to pass through is arranged on a peripheral side wall of the second adjusting wheel (4); one end of each of the steel wires is fixed to the corresponding first adjusting wheel (3) / second adjusting wheel (4), and the other end of each of the steel wires extends to the lens at the front end of the endoscope; A first circular mounting groove (32) is provided on the top surface of the first adjusting wheel (3), a first elastic sheet (6) is provided in the first circular mounting groove (32), a first locking piece (61) is telescopically provided on the first elastic sheet (6), a first matching piece (33) used in conjunction with the first locking piece (61) is provided on the inner peripheral wall of the first circular mounting groove (32), and the first locking piece (61) is telescopically provided to engage with or disengage from the first matching piece (33); A second mounting circular groove (42) is provided on the top surface of the second adjusting wheel (4), a second elastic sheet (7) is provided in the second mounting circular groove (42), a second locking piece (71) is telescopically provided on the second elastic sheet (7), a second matching piece (43) used in conjunction with the second locking piece (71) is provided on the inner peripheral wall of the second mounting circular groove (42), and the second locking piece (71) is telescopically provided to engage with or disengage from the second matching piece (43); The rotating shaft (5) comprises a circular section (51), a first square section (52), and a second square section (53); the circular section (51) is rotatably connected to the endoscope housing (1); the first square section (52) passes through the first elastic sheet (6) and the second elastic sheet (7) at the same time; the centers of the first elastic sheet (6) and the second elastic sheet (7) are both provided with a square hole for the first square section (52) to pass through; the second square section (53) is located outside the endoscope housing (1), and the second square section (53) is plugged into the handle (2).
2. The wire adjustment mechanism for an endoscope according to claim 1, characterized in that: The first elastic sheet (6) comprises two first unit metal sheets (62), the middle parts of the two first unit metal sheets (62) have a force moving in a direction away from each other, and the ends of the two first unit metal sheets (62) have a force moving in a direction approaching each other, the first locking piece (61) is connected to both ends of the first unit metal sheet (62), and the two first locking pieces (61) at one end of the length direction of the two first unit metal sheets (62) are connected; The second elastic sheet (7) comprises two second unit metal sheets (72), the middle parts of the two second unit metal sheets (72) have a force moving in a direction away from each other, the ends of the two second unit metal sheets (72) have a force moving in a direction approaching each other, the second locking pieces (71) are connected to the two ends of the second unit metal sheets (72), and the two second locking pieces (71) at one end of the two second unit metal sheets (72) in the length direction are connected.
3. The wire adjustment mechanism for an endoscope according to claim 1, characterized in that: The second adjusting wheel (4) is located below the first adjusting wheel (3); a pressing ring (34) is provided at the bottom of the first adjusting wheel (3); the pressing ring (34) is pressed onto the second elastic sheet (7) so that the two second unit metal sheets (72) of the second elastic sheet (7) are fitted together, so that the second locking member (71) moves in a direction away from each other and extends out to engage with the second matching member (43); A pressing sheet (8) is arranged above the first spring sheet (6), and the pressing sheet (8) is pressed on the first spring sheet (6) so that the two first unit metal sheets (62) of the first spring sheet (6) are fitted together, so that the first locking member (61) moves in a direction away from each other and extends to engage with the first matching member (33). When the two first unit metal sheets (62) are fitted together, the top surface of the rotating shaft (5) is flush with the top surface of the topmost first unit metal sheet (62); The pressing sheet (8) is fixed to the first square section (52) of the rotating shaft (5) via a fixing member (9).
4. The wire adjustment mechanism for an endoscope according to claim 3, characterized in that: The fixing member (9) comprises a limiting rod (91) and a movable rod (92), wherein the limiting rod (91) is connected to the bottom surface of the pressing plate (8), and a limiting groove (521) for the limiting rod (91) to penetrate is provided on the top surface of the rotating shaft (5), the limiting rod (91) is hollow, and a movable groove (911) is provided downward on the top surface of the limiting rod (91), and the movable groove (911) is symmetrically arranged on both sides of the radial direction of the limiting rod (91), and the movable groove (911) corresponds to the movable rod (92) one by one, and the bottom end of the movable rod (92) is fixedly connected to the inner bottom wall of the movable groove (911), and the top end of the movable rod (92) is movably connected to the limiting rod (91), and the top end of the movable rod (92) extends above the pressing plate (8), and a movable hole (81) for the movable rod (92) to move is provided on the pressing plate (8); A limiting protrusion (921) is arranged on the outer wall of the movable rod (92), and a limiting ring groove (522) is opened outwardly on the peripheral side wall of the limiting groove (521) for the limiting protrusion (921) to penetrate. When the pressing sheet (8) presses the two first unit metal sheets (62) to fit together, the top surface of the limiting protrusion (921) abuts against the inner top wall of the limiting ring groove (522).
5. The wire adjustment mechanism for an endoscope according to claim 4, characterized in that: The outer wall of the limiting protrusion (921) is arranged to be inwardly contracted from top to bottom.
6. The wire adjustment mechanism for an endoscope according to claim 1, characterized in that: The first locking piece (61) and the second locking piece (71) are tooth-shaped structures, the first matching piece (33) and the second matching piece (43) are internal tooth surfaces, the first locking piece (61) extends to engage with the first matching piece (33) or retracts to disengage from the first matching piece (33), and the second locking piece (71) extends to engage with the second matching piece (43) or retracts to disengage from the second matching piece (43).
7. The wire adjustment mechanism for an endoscope according to claim 1, characterized in that: The first locking piece (61) and the second locking piece (71) are tooth-shaped structures, the first matching piece (33) and the second matching piece (43) are rubber rings, the first locking piece (61) is extended to be inserted into the first matching piece (33) or retracted to be separated from the first matching piece (33), and the second locking piece (71) is extended to be inserted into the second matching piece (43) or retracted to be separated from the second matching piece (43).
8. The wire adjustment mechanism for an endoscope according to claim 1, characterized in that: The first mounting hole (31) comprises a first entry hole (311) and a first exit hole (312), the first entry hole (311) and the first exit hole (312) being located on both sides of the first adjusting wheel (3) in a radial direction, and the first entry hole (311) and the first exit hole (312) being parallel to the diameter direction of the first adjusting wheel (3); The second mounting hole (41) comprises a second entry hole (411) and a second exit hole (412), the second entry hole (411) and the second exit hole (412) being located on both sides of the second adjusting wheel (4) in a radial direction, and the second entry hole (411) and the second exit hole (412) being parallel to the diameter direction of the second adjusting wheel (4).